Retractable sash tightening device



1954 J. E. HAYNES RETRACTABLE SASH TIGHTENING nsvzcs Filed Jan. 22, 1951 FIG. I

.ai lll INVENTOR. JOSEPH E. HAYNES Patented Feb. 9, 1954 Nil TED .S TATE S PATEN T FF IC E 2,668,728 RETRACTABLE SASH TIGHTENING DEVICE Joseph E. Haynes, Baltimore, Md. Application January 22, 1951, Serial No. 207,178

3 "Claims.

This invention'relatesto windows for buildings and more particularly those of vertically reciproeating types, which have sashes of the storm window type capable of being readily removed from the window frames.

"While there are window structures already deveioped that have "sashes readily 'insertable and removable, theo'bjec'tion to them is that the device 'that is incorporated in their construction is usually physically connected in a permanent manner so "as'to extend from the sash that require'sfparticular 'care and effort in its use.

.Infthis invention the device is installed in a somewhat similar manner but can 'be'readily collapsed in the sash 'irame so as to be 'fiush "therewith, and thereby permit the insertion or :removal with aminimum amount of effort.

Among the objects of "this invention is the .provision or a new and improved fastening unit for a'window sash *thatwill enable it to be used with a window frame and avoid one or more of the disadvantages and limitations of the prior art.

Andther object of the invention is to provide a new and improved window sash fastening unit that can "be attached to a window structure to enact between the sash and window frames in such manner as to retain them together :in operable cooperation and capable of being collapsed flush in a convenient way, when made ready for removal of the sash from the window frame.

A. furtherobject ofthe invention is to provide a new'and improved fastening unit adaptedto be assembled in aa isash .ifrar'ne ireadily made flush therewith for dismantling the sash from a window frame and having provision for locking its (component parts.

Qtherobjects of the invention will be apparent as the latter is more fully disclosed.

For a better understanding of the invention and the objects thereof reference is made to the accompanying drawings, which in conjunction with the following description, outline a particular form of the invention by way of example, while the claims indicate its scope.

In the drawings:

Figure 1 is a view in elevation of a window frame and sash having a fastening unit embodying this invention, cooperatively coordinating them in operational relationship;

Figure 2 is an enlarged detail of the fastening unit ready for mounting in the window sash;

Figure 3 is a sectional view taken along line 3-3 of Figure 2;

Figure 4 is a sectional view taken along line 44 of Figure 1; and

Figure 5 is a sectional view taken along line 5-5 of Figure 1.

Similar reference characters refer to similar parts throughout the drawings.

In the construction shown in the drawings, a window "frame i 0 having thegeneral conventional rectangular appearance exteriorly, is provided with grooves l I running vertically along the inner face 12, of its vertical legs. Likewise the sash 20 is of rectangular form enclosing a glass panel 23. Its vertical legs "have their outer faces 22 recessed into slots ZI at spaced intervals, to

receive fastening units 24 on one side, 'and roller units 25 on'the other. Each roller unit 25 consists of a simple pin 26 on which is mounted a small roller 2! used for riding on the bottom of the groove H in which they roll. The construction of these roller units is apparent "from the drawings. I

Each "of the "fastening units 24 consists of a rectangular *block'ifl with a U contoured slot 29 formed therein. The slot 29 is relatively deep so that the mechanism operating "therein can be brought down flush'with the face tll when .col-

25 lapsed. The mechanism "consists of a T-bar 3| disposed in the 'middle'of the slot 329 and adapted to rise at right angles tothebl'ock 2B and project in :such manner that its head forms a hat con ta'cting slider or'sliding e1ement32 and is parallel to and projected abovethe surface L3H and pressed against the groove 1! .in the window frame It. The T-b'ar 3.! has its head 32 and its base 33 faced ofi flat 'andparallel to ride .on. the bottoms of the grooves they contact. The rest of the'head and 'baserhas ,faces' '34 and 35 respectively converging towards the middle of the unit '2! and terminating inspherical slots .36. These slots -.35 serve as bearingsfor thespherical heads 3?! of the tog le bars 138 which .arouately .oscillate in them. The space between the head 32 and base 33 by reason of the converging faces enables the bars 38 to move through predetermined arcs. The bars 38 project into passages in the pivoted holding shanks 39 and can reciprocate slightly in and out of same. Coil springs 40 press outwardly on the bars 38 from the shanks 39 and keep them under tension. The springs 40 are adjusted in tension to suit the weight of the sash by the use of collars 4! which are adjustably screwed on the bars 38 and vary the length of the springs. It can be appreciated that the bars 38 in conjunction with the slider element, work like a toggle. The mechanism has two positions, by reason of the toggle action. One position retracts the slider element 32 into the sash slot 2|, and holds it in retracted position until released so that the sash may be removed or replaced. The second position is where the slider element 32 is extended. This is arranged when the sash is in place and serves to lock the sash and frame together, so they can work like a conventional window of the raiseand-lower type. Where desired, the toggle mechanism can be locked in its extended position by the use of a cam 43 rotatably mounted on the block 28. The cam is rotated on its pin 44 so it will be on a dead center between the block and the bottom of the respective slot 29. The head of the cam is preferably slotted at 50 for operation by a tool or coin and is held in position by a member 41 attached by screws I3 to block 28. The member 41 is provided with a slot 49 to operate cam 43.

When the sash is mounted in a window frame, it is pressed in at the side which supports the rollers 21. The rollers are inserted with the flat spring 45 pressing against the wall of the window frame to prevent rattling and undesirable vibration. The pin 26 holds the roller 21 and spring 45 in place in the sash. When the sash has been so placed, it is moved from a plane angular to the window frame back to one in alignment therewith so the fastening units will be aligned with the grooves II. The fastening units then have their toggle mechanism released so the slider element 32 will fit in the groove II in the frame and the whole sash held securely therein. This is due to the fact that the element head 32 is held by the walls about the groove II on one side and the rollers 21 by groove H on the opposite side. The general construction of the fastening element can be appreciated from the drawings.

The device is simple. It has a toggle that works in the way wanted at the time selected in a quick and effective manner. It stays put when its toggle is moved into either of its two positions, and requires a certain amount of effort to change it from one to the other. In other words the toggle mechanism will not undo or release itself. The sash is preferably slightly wider than the window frame, but can be shoved into place readily by tilting. A roller 46 is preferably mounted on the sliding element 32 as indicated to reduce frictional resistance in the event that the window is slid with the head 32 in extended position. The projection of roller 46 beyond the face of head 32 is slight and the head is always able to gyrate about its universal mountings 31 so that a good portion of the face always engages the groove I l of the window frame. This engagement occurs on either the left or the right side of head 32 depending on the drag of the window in its groove.

While grooves, slots and channels are shown in the drawings it is to be understood that the reverse construction could be utilized instead, and

therefore in the interpretation of the terms, it is intended that it shall be broad enough to include them, since the variation from one to the other is a matter of common and conventional design and practice. Such changes in design are to a great part dependent on the materials available and to the tools or other facilities accessible during manufacture, and therefore do not seen to require drawings details to cover them.

While but one general form of the invention is shown in the drawings and described in the specification, it is not desired to limit this application for patent to this particular form, as it is appreciated that other forms of construction could be made that would use the same principles and come within the scope of the appended claims.

Having thus described the invention, what is claimed is:

1. A sash lock comprising a hollow block, means for securing said block to the sash, a projecting element having a flat face adapted to cooperate with the frame associated with the sash, a pair of toggle arms pivoted at one end to each extremity of the block and nested, at the other end, in the projecting element, whereby the block moves outwardly and inwardly with the pivotal movements of the arms, yielding means acting to project the element when the element is moved outwardly beyond a certain point and tending to retract the element when the element is moved inwardly beyond said certain point within the hollow block, and cam means for locking the element outwardly of the block with its flat face against the associated frame against the normal retracting tendency of the yielding means.

2. A sash look as set forth in claim 1 wherein each toggle comprises a hollow shank pivoted to the block, a bar slidable in and rotatable with the shank, a spherical head at the end of the bar nested in the block, an abutment on the bar adjacent the head, and wherein the yielding means consists of a spring having one end resting against the aforesaid abutment and its opposite end resting against the aforesaid shank.

3. A sash look as set forth in claim 1 wherein the fiat face carries a medially located roller protruding slightly from the plane of the face to assist rolling movement of the lock along the associated frame.

JOSEPH E. HAYNES.

References Cited in the file of this patent UNITED STATES PATENTS Number Name Date 281,458 Conner July 17, 1883 1,159,637 Adickes Nov. 9, 1915 1,447,148 Peterson Feb. 27, 1923 2,521,292 Hayman Sept. 5, 1950 

